As the last two steel rails were connected, the track-laying work for the first cross-river railway bridge connecting China and Russia was completed in Northeast China's Heilongjiang province on Tuesday, China Railway Harbin Group said.

The bridge across the Heilong River, known as the Amur River in Russia, will connect the city of Tongjiang in Heilongjiang with Nizhneleninskoye in Russia.

The main bridge spans 2,215 meters, with 1,886 meters of that in China. Construction of the bridge, which has a designed annual throughput capacity of 21 million metric tons, began in February 2014.